TABLE 3

F2 values and -fold induction at highest concentration tested (given in parenthesis) for induction of CYP2C8, CYP2C9, and CYP2C19 mRNA in HepaRG cells treated with rifampicin F2 is the concentration resulting in a 2-fold increase of baseline mRNA levels. Values are mean ± S.D. of three separate batches of differentiated HepaRG cells.




F2

-Fold Induction at Highest Concentration Tested (4 μM)
CYP2C8 mRNA 0.21 ± 0.03a 2.9 ± 0.58
CYP2C9 mRNA 0.25 ± 0.03 2.3 ± 1.4
CYP2C19 mRNA
0.41 ± 0.25
2.9 ± 2.1